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Sự khác biệt giữa Rest parameters (...args) và arguments object trong JavaScript là gì? · ORA·tech

Trung bình Pro#javascript

Sự khác biệt giữa Rest parameters (...args) và arguments object trong JavaScript là gì?

15 tháng 2, 2026

Tóm tắt nhanh

Rest parameters (`...args`) là một Array thực sự chứa các tham số còn lại của hàm, trong khi `arguments` là một đối tượng dạng mảng (array-like) chứa tất cả tham số được truyền vào. Điểm mấu chốt là Rest parameters hỗ trợ đầy đủ các phương thức của Array và hoạt động được trong arrow function, còn `arguments` thì không.

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